Control Valves | McMaster-Carr

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12,397 Products

Most Likely Products

Directional Control Valves

Manage the flow of fluids to move equipment in air- and hydraulic-powered systems

420 products

On-Off Valves

Start and stop flow through a line

4,242 products

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

804 products

Air Flow Control Valves

Control the speed of air-powered equipment by adjusting the volume of airflow entering or exiting

293 products

All Results

Fluid Handling

Directional Control Valves

Manage the flow of fluids to move equipment in air- and hydraulic-powered systems

420 products

On-Off Valves

Start and stop flow through a line

4,242 products

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

804 products

Flow-Adjustment Valve Manifolds

Control flow to multiple points from one source

9 products

Solenoid Coils

Replace the coil that actuates your flow-control valve

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Air-Exhaust Valves

Vent or divert exhaust to speed up the operation of air cylinders, actuators, and other equipment

75 products

Valve Repair Kits

Maintain valves with replacement parts such as seals, plungers, and springs

160 products

Diverting Valves

Redirect flow between ports

272 products

Valve Actuators

Automatically start and stop flow to your valve

50 products

Flow-Regulating Valves

Maintain the set flow rate of fluid through your system

50 products

Float Valves

Open or close a pipe connection when liquids in a container reach a set level; also known as ballcocks

119 products

Float Valve Bodies

Pair with floats and rods to create float valves that meet your needs

77 products

Valve Bodies

Attach to actuators to automatically or manually control flow in your line

16 products

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

91 products

Check Valves

Permit flow in only one direction by closing when flow stops or reverses

744 products

Pilot Valves

Control air supply to the actuator in other valves

13 products

Air Pulse Valves

Convert continuous flow into bursts that reduce air consumption in dryers and dust collectors

9 products

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

989 products

Air Valves

Fill tanks, tires, and other pressurized equipment

23 products

Valve Seats

Seal valves when they're closed to prevent leaks

40 products

Backflow-Prevention Valves

Dual checks stop flow from reversing and contaminating your system

26 products

Tap Valves

Pierce copper tubing for a secondary line to humidifiers and ice makers; also known as saddle valves

1 product

Vacuum Breakers

When pressure drops, vents open to prevent suction from drawing liquid back upstream

33 products

Propane Tank Valves

Start and stop the flow of propane from a tank

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Sampling Valves

Drain a small amount of fluid for inspection without disrupting flow

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Air Vent Valves

Eliminate air pockets from fluid lines to maintain consistent flow and prevent surges

39 products

Sump Pump Backflow-Prevention Valves

Block dirty water from returning to your sump pump

2 products

Valve Union Fittings

Mating parts join valves to a line for quick connection and removal

34 products

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

305 products

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

245 products

Vacuum-Regulating Valves

Control the amount of air that a vacuum pump draws from your system to maintain vacuum levels

14 products

Vacuum-Relief Valves

Open at a set vacuum and close when the vacuum level drops to protect equipment

3 products

Compressed Gas Valves

Check and adjust the pressure of compressed gas in tanks; also known as Schrader valves

2 products

Pressure-Relief Discs

Rupture at a set pressure or temperature to vent fluid and gas and protect machinery; one-time use

39 products

Mixing Valves

Blend hot and cold water, steam, or oil to maintain a set outlet temperature and prevent scalding

268 products

Gas Mixers

Supply controlled amounts of air and gas to burners

9 products

Tank Mixing Nozzles

Circulate liquid in tanks to keep solids from settling

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Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

866 products

Flame Arresters

Absorb heat from a fire in your gas pipeline to stop it from traveling back to the gas source

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Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

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Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

28 products

Mufflers

Reduce noise and filter exhaust fumes

26 products

Power Transmission

Air Flow Control Valves

Control the speed of air-powered equipment by adjusting the volume of airflow entering or exiting

293 products

Compressed Air Regulators

Ensure continuous, safe operation of air-powered equipment by controlling air pressure

490 products

Compressed Air Filter/Regulators

Simultaneously clean air that's running through a system and control its pressure

219 products

Compressed Air Regulator Manifolds

Use a single air supply to meet multiple pressure requirements

63 products

Compressed Air Dryers

Remove lingering moisture from air lines

2 products

Safety Lockout Valves

Prevent accidental start-up when servicing equipment

40 products

Compressed Air Regulator Locks

Lock over your regulator knob to prevent unwanted pressure changes

2 products

Air Flow Check Valves

Open to allow air flow in one direction and close when flow stops or reverses

21 products

Hydraulic Check Valves

Open to allow hydraulic fluid flow in one direction and close when flow stops or reverses

78 products

Hydraulic Flow-Adjustment Valves

Turn the knob to gradually adjust the flow of hydraulic fluid

2 products

Air Cylinders

Push and pull loads to do everything from stamping materials to sorting parts on conveyors

12 products

Facility and Grounds Maintenance

Toilet Flush Valves

Release water from a plumbing line or toilet tank into the bowl

18 products

Toilet Tank Replacement Parts

Replace parts such as flappers, fill valves, and floats in your toilet tank

4 products

Shower Valves

Control water and regulate temperature to prevent scalding

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Faucet Pedals

Start and stop water with your foot or knee to keep your hands free

15 products

Urinal Flush Valves

Release water from a plumbing line into the urinal bowl

19 products

Sink Faucets

Manual and touch-free faucets for janitorial, restroom, and food service sinks

138 products

Drain Check Valves

Prevent water damage by placing into floor drains to stop sewer back-ups

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Garden Hose Faucets

Connect garden hose to lines coming from a building or the ground

32 products

Lubricating

Coolant Hose and Fittings

Build a custom system to deliver coolant, cutting oil, water, or air in any direction

25 products

Oil-Dispensing Pump Metering Valves

Add to manual and electric pumps to dispense the right amount of oil to different lubrication points

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Safety Equipment

Eye Wash Station Replacement Parts

Replace eye wash station parts such as spray heads, valves, handles, and bowls

12 products

Fastening and Joining

Welding Gas Flashback Arresters

Attach to your gas welder to extinguish flames and stop reverse gas flow

24 products